“Basically an M-16 in 7.62 NATO caliber.”
I believe that would be 5.56 mm NATO.
I interpret Roklok's post as, "Basically an M-16 [except] in 7.62 NATO caliber [as opposed to the usual 5.56mm NATO round].
Roklok, please feel free to correct me if I assumed wrongly.
Kindest regards,
Gunner
You are confused.